Improvement in steam-boilers



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A. GIVLLIATZERI.

Steam-Boiler.

No. 221,049. Patented Oct. 278, 187-9.

NPETERS, FHOTO-LITHOGRAPNER, WASHINGTON, D c.

2 Sheets-Sheet 2. A GILLITZER.

Steam-Boiler. No. 221,049. Patented Oct. 28, 1879.

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N. PETERSv FHOTO-LITHOGRAPHER, WASHINGTON. D. c

UNITED STATES PATENT OFFICE.

IMPROVEMENT IN STEAM-BOILERS,

Specification forming part of Letters Patent No. 221,049, dated October 28 1879; application filed August 7,1879.

To all whom it may concern:

Be it known that I, ADALBERT GILLITZER, civil engineer, of Fiinfkirchen, in the Austro- Hungarian Empire, have invented a new and useful Improvement in Steam-Boilers, which improvement is clearly and fully set forth in the following specification.

My invention can be applied to existing steam-generators as well as to new ones, and can be used in connection with stationary and locomotive engines, with marine engines, and generally in all cases where steam'is used. It is called the system of universal steamboilers.

The universal application of my improved boiler is owing to the simplicity of construction, to the regularity of working, and to the easiness of inspection and cleaning without dismounting the boiler and its tubes. Being made of cylindrical shape they admit of a very great tension of steam, (ten to twenty atmospheres.) The costly brick-work and high chimneys commonly used for stationaryengines may be dispensed with, an ordinary house-chimney being in general sufficient for the operation of large boilers.

In the accompanyingdrawings, which form a part of this specification, Figure 1 is a vertical section of a boiler constructed in accordance with my invention; Fig. 2, a horizontal I section on line A B; Fig. 3, a horizontal sec tion on line C D, Fig. 4, a front View, and Figs. 5, 6, 7, and 8, detail views on enlarged scales.

Two cylinders, a b, with dome-shaped tops connected together constitute the body of the boiler. A water-space is formed between them. The form and relative proportions of the two cylinders are shown in Fig. 1. From the top of the cylinder 1) a small cylinder, 2, with closed bottom, is suspended. This cylinder 2 opens into the water-space,- and a pipe, 1, leading from without the boiler extends nearly to the bottom thereof. Between the cylinder 2.and the cylinder 12 is a series of spiral pipes,

c, which open at the points 6 into the waterspace, and at the other end terminate in eduction-pipes g, which extend into the steam-space about ten centimeters above the highest water level of the boiler. Below the tubes 0 is the fire-grate k, to which access is had' through the door The products of combustion pass off through 5 to the chimney. The steamtightness of the joints which the tubes 0 make with the walls of the cylinder I) is effected by means of hollow plugs d, Figs. 3, 5, 7, and S, operated from without through the screws f, which pass through the lid of the man-hole. The tightening of the joints can therefore be effected without interrupting the working of the machine.

The construction and arrangement of the several parts are best seen in Fig. 5.

The boiler is also provided with a water level, manometer, and safety-valves, as shown in Fig. 4, as is usually the case in steam-boil ers.

In operation water is fed through the pipe 1. It fills the cylinder 2, overruns into the water-space between the cylinders a b, and then rises in the pipes 0 till the proper level isreached. The flames and hot gases passing the pipes c generate steam, which escapes,

through the pipes 9 into the upper part of the cylinder at or steam-dome. Dry steam is thus supplied. As fast as the water evaporates a fresh supply is furnished from the water-space. If any leakage takes place at the points 0 the hollow plugs d are tightened by the screws f,

as before explained. The boiler can be emptied when desired, by means of suitable blow-oft cocks.

In order to clear the tubes 0 the plugs at are removed, when access is had to their end through the man-holes.

The heating-surface obtained by the arrange ment described is very great in comparison with the small size and weight of the appara tus, which is capable of resisting great pressure. All kinds of fuel may be employed.

The system of water-circulation efl'cctually prevents sediment and incrustation in the steam-tubes.

Modifications may be made in the boiler without departing from the spirit of my invention-for example, in the number and arrangement of the tubes. Any number may be employed. the water-space atthe same or at different levels, and it is notnecessary that they. should all be coiled alike. I h

I regard the construction shown and dc They may be connected with a scribed as the best for boilers of small dimen sions. In larger boilers the hearth is placed in the interior of the cylindrical body.

Having thus fully described my invention, and the manner in which the same is or may be carried into efl'ect, what I claim, and desire to secure by Letters Patent, is as follows:

1. The con'ibination, with the body of the boiler with double walls forming a water-space, of a cylinder open at the upper end, closed at the lower end, suspended in the fire-box, and communicating with the waterspace, an inletpipe extending from outside the boiler to near the bottom. of said cylinder, and a series of pipes connected at their lower ends with the water space extending spirally around the aforesaid cylinder, substantially as described.

2. In a steam-boiler, the means for effecting the steam-tightness ofjoints of the tubes, consisting of a hollow tapered plug and tightening-screw, substantially as described.

The combination, with the water-space of a steam-boiler, of a tube fitting in a hole in one wall of said space, a tapered plug fitting in the open end of said tube, and a screw passing through the other wall of the waterspace and bearing against the outer end of said plug, substantially as described.

4. A steam-boiler having double walls with a water-space between them, and a series of tubes connected at their lower end with such space, and provided with means for making tight such connection and for exposing the open ends of the tubes, the said means consisting of a tapered hollow plug, a man-hole with a lid, and a screw passing through said lid and pressing against said plug, substantially as described.

ADALB'ERT GILLITZER. W'itnesses:

WiLLIAM HUNING, H. J. WEAVER. 

